ci: fix GitHub Actions paths

.github/workflows/ci.yml

@@ -34,29 +34,25 @@ jobs:
             ruff
 
       - name: Ruff
-        working-directory: legacy-knowledge-indexer
         run: ruff check app scripts tests
 
       - name: Compile
-        working-directory: legacy-knowledge-indexer
         run: python -m compileall -q app scripts tests
 
       - name: Pytest (unit only — heavy deps excluded)
-        working-directory: legacy-knowledge-indexer
         run: |
           pytest tests/test_hashing.py tests/test_quality.py \
                  tests/test_chunker.py tests/test_duplicates.py \
                  tests/test_hybrid_search.py -q
 
       - name: docker compose config
-        working-directory: legacy-knowledge-indexer
         run: docker compose config --quiet
 
       - name: docker compose config (prod overlay)
-        working-directory: legacy-knowledge-indexer
         run: |
           test -f docker-compose.prod.yml && \
-            docker compose -f docker-compose.yml -f docker-compose.prod.yml config --quiet || \
+            docker compose --env-file .env.prod.example \
+              -f docker-compose.yml -f docker-compose.prod.yml config --quiet || \
             echo "prod overlay absent, skipping"
 
   frontend:
@@ -64,7 +60,7 @@ jobs:
     runs-on: ubuntu-latest
     defaults:
       run:
-        working-directory: legacy-knowledge-indexer/frontend
+        working-directory: frontend
     steps:
       - uses: actions/checkout@v4
 
@@ -72,7 +68,7 @@ jobs:
         with:
           node-version: "20"
           cache: "npm"
-          cache-dependency-path: legacy-knowledge-indexer/frontend/package-lock.json
+          cache-dependency-path: frontend/package-lock.json
 
       - run: npm ci